Tenable Post-Quantum Cryptography Inventory Support
Summary The advent of quantum computing presents a significant threat to current cryptographic algorithms. Organizations worldwide are beginning the critical transition to post-quantum cryptography (PQC) resistant algorithms to ensure long-term data security. Government mandates, such as the U.S. National Security Memorandum 10 (NSM-10), outlines deadlines for PQC migration and specific actions agencies must take to migrate vulnerable systems. Our PQC support is designed to help customers inventory use of TLS and SSH quantum-resistant and vulnerable algorithms within their infrastructure using remote Nessus-based scans. Cipher Inventory and Reporting Post-Quantum Cipher Plugins Two remote-based scan informational reporting plugins for TLS and SSH protocols inform customers of their transition posture according to NIST Post-Quantum Encryption Standards. Services Using Post Quantum Cryptography: Reports on services equipped with at least one post-quantum cipher. It will specify which post-quantum ciphers were discovered, reporting by port and protocol. Services Not Using Post Quantum Cryptography: Reports on services that support no post-quantum ciphers. These plugins will be enabled by default and included in existing scans. Cryptographic Inventory Plugin Reporting To enable a JSON-based inventory of each target by service and cipher, enable through either a preference on your Advanced Network Scan or by running the Cryptographic Inventory scan template. These preferences will initially be supported in Nessus and Tenable Vulnerability Management. They are planned to be added to Tenable Security Center at a later date. Warning: Enabling this preference through the Advanced Network Scan is expected to increase the overall size of the plugin output per target and resulting Nessus database size. If you do not need to produce this inventory at all or on your regular scan cadence, it’s recommended to instead run the Cryptographic Inventory scan template to decrease the potential impact to your normal scan results. Options to Enable Inventory Reporting Advanced Scan Preference Post Quantum Cryptography Scan Template Cryptographic Inventory Plugin Details The plugin enabled with the preference or scan template is an information plugin called Target Cipher Inventory. Within the output of this plugin, you will find a JSON structure containing the TLS and SSH inventories for the scanned target. You can export this inventory based on plugin output using the Tenable API if needed. For TLS, the structure contains: Attribute Definition Encaps Protocol encapsulation employed such as TLSv1, TLSv2, TLSv3 Port Port used for TLS communication Curve Group Encryption method Ciphersuite Algorithm used to secure the TLS connection For SSH, the structure contains: Attribute Definition Proto Protocol of SSH Port Port used for SSH communication Name Algorithm used to secure the protocol Type Use of the named algorithm such as “message auth” Release Date Tenable Vulnerability Management and Tenable Nessus: December 8, 2025 Tenable Security Center: - December 8, 2025 for the informational plugins - Cryptographic Inventory scan template release to be determined
Include/Exclude Path and Tenable Utils Unzip added to Log4j Detection
Summary Tenable has updated the Apache Log4j detection plugins. The Windows plugin will now honor the Include/Exclude Filepath configuration option. The Linux/UNIX plugin will now use the version of ‘unzip’ supplied with the Nessus Agent, when enabled in the Agent’s configuration, and correctly inspect the MANIFEST.MF and pom.properties files. Change Before this update, plugin 156000, Apache Log4j Installed (Linux / Unix), would fail to detect Log4j in specific scan scenarios. The plugin uses several inspection methods to determine if a JAR file is a copy of Log4j. During Nessus Agent scans, as well as scans with ‘localhost’ as a target, the plugin was not properly executing the unzip command to inspect META-INF/MANIFEST.MF and pom.properties files in the JAR archive. If this method was the only option that would result in a successful detection, the copy of Log4j would not be detected properly. In addition, the plugin had failed to launch the unzip binary supplied with the Agent when inspecting files in JAR archives. Note: The Nessus Agent can be configured to use find and unzip binaries that it provides, instead of those supplied by the asset’s operating system. See https://docs.tenable.com/vulnerability-management/Content/Scans/AdvancedSettings.htm#Agent_Performance_Options for more information. Also before this update, plugin 156001, Apache Log4j JAR Detection (Windows), would fail to honor the directories included or excluded for full-disk searches configured in the Windows Include Filepath and Windows Exclude Filepath directives in the Advanced Settings of a scan config. Note: Configuration of these options is described in https://docs.tenable.com/vulnerability-management/Content/Scans/AdvancedSettings.htm#Windows_filesearchOptions. After this update, plugin 156000 will use the Agent-supplied copy of unzip when configured to do so. If this option is not enabled in the scan config, the plugin will use the existing method to find and execute an archive utility supplied by the asset’s operating system. In either case, the plugin will properly inspect Log4j’s MANIFEST.MF and pom.properties files as a version source. Plugin 156001 already properly inspects these files. Also after this update, plugin 156001’s Powershell code will now honor directories included or excluded by the Filepath directives. Plugin 156000 already supported this feature. Impact When scanning Linux / UNIX assets via 'localhost' (i.e. scanning the scanner itself) or with the Nessus Agent, additional Log4j instances from MANIFEST.MF or pom.properties sources may be reported. For Linux Nessus Agents with "Use Tenable supplied binaries for find and unzip" enabled and "Agent CPU Resource Control - Scan Performance Mode" set to Low, plugin 156000 will now properly limit CPU usage during scans. As noted in the product documentation, “Note: Setting your process_priority preference value to low could cause longer running scans. You may need to increase your scan-window timeframe to account for this value.” Customers should be aware of this configuration setting and potential changes to the results provided in the Log4J detection results. When scanning Windows targets, Log4j JAR files stored in paths specified in the Windows Exclude Filepath configuration will no longer be detected. Log4j JAR files stored in paths or drives specified in the Windows Include Filepath configuration that had not been previously scanned will now be detected, assuming they can be assessed before the plugin’s configured timeout has been reached. Plugins 156000 - Apache Log4j Installed (Linux / Unix) 156001 - Apache Log4j JAR Detection (Windows) Target Release Date September 1, 2025
KACE Unified Endpoint Management End-of-Support
Summary Effective immediately, Tenable has discontinued support for KACE Unified Endpoint Management Software by Quest. This applies to all previous and current versions of the software. Change Discontinued support of the Tenable integrations for KACE Unified Endpoint Management Software. Impact Customers may continue to use this integration. However, there will be no support or future updates made to these integrations. Release Date Effective Immediately
